Spindle



D86. 3, PERRY 2,224,104

SPINDLE Filed July 27, 1939 A TTORNEYS.

Patented Dec. 3, 1940 UNlT-ED STATES SPINDLE John Perry, Seekonk, Mass assignor to H &.B American Machine Company, a corporation of Maine Application July 27, 1939, Serial No. 286,815.

. 4 Claims.

This invention relates to spinning and twisting spindles, and in particular to improvements in the whirls of such spindles; and has for one of its objects to avoid an uneven and irregular winding of the textile material on the bobbins of the machine.

Another object of the invention is to provide an improved whirl construction for spindles of this class by which it is possible to compensate for different thicknesses of the bottom flanges of the bobbins whereby a substantially uniform and regular winding of the textile material will result on the bobbins of the machine with which the improved whirl structure is employed.

Another. object of the invention is the provision of a whirl structure so arranged that the adjustment of the bobbin supporting seat may be adjusted to suit varying thicknesses of bobbin flanges,

Another object of the invention is the provision of a whirl having associated therewith an adjustable bobbin supporting seat in which adjustment of the same relative to the whirl may be obtained by a rotary movement.

Another object of the invention is to provide a whirl of the above character in which the movable bobbin supporting seat portion thereof may be secured in any adjusted positions.

With these and other objects in view, the invention consists of certain novel features of construction, as'willbe more fully described, and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 isa side elevational view of a spindle embodying the present invention and showing in dot and dash outline a bobbin mounted in the spindle blade in normal operative relationship to the usual ring rail;

FigIZ is an enlarged central longitudinal sectional' view of the whirl represented in Fig. 1 and showing the locking'band in a locking position with respect to the whirl and its adjustable bobbin supporting seat portion;

Fig. 3 is a sectional view of a fragmental portion of the whirl structure shown in Fig. 2 and showing the locking band moved into a disconnected position from the adjustable bobbin seat to permit adjustment of the same from or to the dot and dash position indicated in the figure;

Fig. 4 is a plan View taken substantially on the line 4-4 of Fig. 2; and i Fig. 5 is a perspective view of the locking band.

It is found inthe operation of the prior spinning and twisting machines in which spindles having the supporting seat for the bobbin an integral part of the whirl structure are used that uneven and irregular packaging of the windings of the textile material, particularly with rayon yarn, on the bobbins or cops result on some of the spindles on account of varia- 6 tions in thicknesses of the bottom end flanges of the different bobbins, and there is no way in which to compensatefor the variations in height of the bobbins caused by such varied thicknesses of the bottom flanges which occurs 10 when the bobbins are mounted on the spindles because of the solid and integral character of the bobbin supporting seat with the whirls of the spindles. Consequently, in the winding of the textile material on the bobbins, some of the bobbins have yarn packages of less yardage than others, while other bobbins have irregular and bunched windings, which results are due to the stroke or vertical traverse of the ring rail being constant during building of the yarn package so that the distribution of the windings of the textile material on the bobbins often falls short of the bottom end flange on some of them and is overwound on itself in other yarn packages owing to the different levels of the end fianges'of some of the bobbins above those of others employed in the machine.

Some attempts have been made heretofore to overcome this difliculty, in which one previous form of construction has involved the use of an adjustable step bearing for the spindle whereby the spindle blade and its whirl can be raised or lowered bodily so as to bring the top surface of the bottom end flange of the bobbin to substantially the same level as those of the other 35 bobbin flanges. However, such previous construction has been expensive to build and is not used in practice; and in order to overcome the difiiculties above-mentioned and to secure this desirable result in a simple and efficient manner there is provided a whirl structure having an adjustable bobbin supporting seat which is arranged so as to be readily movable toward and from the whirl into different adjusted positions, and screw thread connections are pro- 45 vided between these parts by which this adjustment may be made; and there is further provided means slidable with respect to both the whirl and the bobbin supporting seat and having interlocking engagement with each of such parts and so arranged for detachably securing the bobbin seat member in any of its adjusted positions relative to the whirl, and also for securing a positive driving relation therewith; and thefollowing is a more detailed description of the present embodiment of this invention, illustrating the preferred means by which these advantageous results may be accomplished:

With reference to the drawing generally designates the spindle and includes the usual base I2, which is removably mounted or fixed upon a rail [3 of the spinning or twisting frame by means of a clamp nut l5 having screw threaded connection with the externally screw threaded portion I6 of the usual tubular extension or socket ll of the base I2 that passes through the rail l3. The socket I1 is closed at the lower end and carries within its interior the customary bolster (not shown) in which the lower end of the spindle blade I8 is rotatably mounted. The spindle blade 3 extends upwardly above the base I2 and carries a whirl which is fixed to the spindle blade [8 and is of a hollow construction on its underside for enclosing and surrounding the usual upstanding outer tubular portion 2| of the base 12. 1

In the normal working position of the spindle represented in Fig. l, a bobbin or cop 22 is mounted on top of the whirl 20, as indicated in dot and dash lines in the figure, the bobbin or cop 22 being seated upon the top surface of a bobbin supporting member 23 which is axially movable along the reduced upper portion 24 of the spindle blade IS and adjustably connected to the whirl 20, as will be hereinafter described. Normally, the bobbin or cop 22 completely surrounds the upper end portion of the spindle blade and projects through the usual spinning ring 25 carried by the vertically reciprocable ring rail 26 during the up and down movement of the ring rail 26 whereby the textile material, such as cotton yarn or rayon, is wound in layers on the bobbin or cop 222 in a plurality of axially distributed convolutions by the traveler 21 during the reciprocatory movement of the ring axially to and fro over the bobbin due to the traversing action of the rail 26.

To compensate for the different thicknesses of the bottom end flange 28 of the bobbin 22 the adjustable bobbin supporting member 23 is provided which consists of an annular collar having a center opening 38 loosely fitting the reduced portion 24 of the upper portion of the spindle blade 8 for free axial movement therealong. A pair of keys 31 extend upwardly from the top of the collar 23 at diametrically opposite positions thereon for insertion into corresponding slots 32 in the bottom end face of the bottom bobbin flange and provide a positive driving connection between the whirl 2i! and the bobbin 22 when the same is mounted upon the spindle and seated on the collar 23. As shown in Figs. 2 and 3, the collar 23 is of a hollow construction and has an annular downwardly extending flange 33 the inner peripheral wall of which is provided with internal screw threads 34 which have screw threaded engageln nt with the exterior screw threaded portion on the plug 36 which is integral with the top end portion of thewhirl and extends upwardly and axially therefrom. 1

To secure the collar 23 fixed in any of its adjusted positions there is provided alocking device consisting of a band 42 which is formed of a strip of metal bent into a, generally circular formation and substantially encircles the hub portion 4| located at the top of the whirl 2E The band 45) is arranged for free axial sliding movement up and down on the hub 4! toward and from the bobbin supporting collar 23 to telescope over the free outside of the lower end portion of the flange 33 in the normal operating position of the band when positioned to lock the collar 23 to the hub. A tongue 42 having sliding movement within a longitudinally extending groove 43 in the outer surface of the hub of the whirl serves to connect the band to the whirl, the tongue being formed by bending inwardly one end of the band 4!].

The annular flange 33 of the bobbin supporting collar 23 is provided with a longitudinal groove 44 which in the different adjusted positions of the collar is successively brought into vertical alignment with the groove 43 of the whirl so as to permit introduction therein of the tongue 42 of the whirl so as to permit introduction therein of the tongue 42 of the band after the collar 23 has been adjusted into a required position. When the bobbin supporting collar is thus adjusted it is then looked firmly in place by pulling the band 40 up and over the lower end portion of the flange 33 of the collar so as to draw the tongue 42 into the groove 44 and to an extent sufflcientto' provide a strong driving connection between the collar 23 and the whirl 20, as indicated in Fig. 2.

When it is desired to adjust the level of the bobbin seat from one position to another, such as for example, from a position as indicated by the dot and dash lines 45 in Fig. 3 into the full line position as shownor vice versa, it is merely necessary for one to push down the band 40 to slide it off the flange 33 after which act the collar 23 may be subsequently rotated either up or down as desired so as to bring the top surface of the collar to the desired level and the grooves 43 and 44 into vertical registry. When this occursthe band 40 is then pulled upwardly to draw the same over the flange 33 of the collar and engage the tongue 42 within the groove 44 of the flange 33 to positively lock the same in its adjusted position so that the collar forming the bobbin seat and the whirl will be rotated in unison to drive the bobbin upon rotation of the spindle i8. An indentation 41 formed in the inner wall of the band 40 for receiving a projection 48 on the flange 33 when the bandis snapped over the projection serves to firmly hold the band in place after it has been drawn up over the lower end of the flange into a connecting and driving relationship with the collar.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. In a spindle, the combination of a rotatable blade, a whirl mounted on said blade for rotation therewith, and means adjustably mounted on the head of said whirl having a top adapted to form a seat for supporting and driving a bobbin, said means being adjustable axially toward and away from said whirl, and having screw threaded connection with said head, and means for detachably securing and locking said bobbin supporting means rigidly in its different adjusted positions on the head of the whirl, said locking means being slidable relative to both the whirl and the bobbin supporting means and telescoping over the outside of a portion of the latter when positioned to lock the parts, together.

2. In a spindle, the'combination of a rotatable blade, a whirl mounted on said blade for rotation therewith, and means adjustably mounted on the head of said whirl having a top adapted to form a seat for supporting and driving a bobbin, said means being adjustable axially toward and away from said whirl, and having screw threaded connection with said head, and means for locking head of said whirl having a top adapted to form a seat for supporting and driving a bobbin, said means being adjustable axially toward and away from said whirl, and. having screw threaded con nection with said head, and means for locking said bobbin supporting means rigidly in its adjusted position on the head of the whirl, said locking means comprising a member slidable relative to both the whirl and said adjustable bobbin supporting means to detachably connect the same together in the adjusted position of the whirl for rotation in unison.

4. In a spindle, the combination of a rotatable blade, a whirl mounted on said blade for rotation therewith, and means adjustably mounted on the head of said whirl having a top adapted to form a seat for supporting and driving a bobbin, said means being adjustable axially toward and away from said whirl, and having screw threaded connection with said head, and means for locking said bobbin supporting means rigidly in its adjusted position on the head of the whirl, said locking means comprising a band about said whirl and slidably connected thereto for rotation with the Whirl and also capable of axial sliding movement toward and away from the bobbin supporting means into and out of an encircling position about its lower end portion, said band carrying a projection having slidable connection with a groove in both the whirl and said bobbin supporting means.

JOHN PERRY. 

